/ Dictionary / Index U U.C.: Meaning and Definition of Find definitions for: U.C. Pronunciation: [key] Upper Canada. under construction. undercover. u.c. Pronunciation: [key] una corda. upper case. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. U bolt Ucayali Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language